AIPMT MAINS 2010 Botany Monohybrid Cross MCQ Question
In Antirrhinum two plants with pink flowers were hybridized. The F₁ plants produced red, pink and white flowers in the proportion of 1 red, 2 pink and 1 white. What could be the genotype of the two plants used for hybridization? Red flower colour is determined by RR, and white by rr genes.
rrrr
RR
Rr
rr
Correct Answer
Detailed Explanation
The F₁ generation shows a 1:2:1 ratio of red:pink:white, indicating a heterozygous cross (Rr x Rr).
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